nothing is unfixable ...
just be patient i mean with time and be a fu#!*&5@!%hole with the dealer and start cursing and pointing fingers then go to the workshop and do more of it ,,, once or twice then your ok.

Thnx guys for u comments above, I cleaned the lens and things r fine now concerning reverse camera screen... Concerning other issues I guess I have to wait and c with the clunk sound , time will tell. Have booked an appointment for fixing the carbon fibre issue.